LAMMPS (8 Feb 2023)
OMP_NUM_THREADS environment is not set. Defaulting to 1 thread. (src/comm.cpp:98)
  using 1 OpenMP thread(s) per MPI task
# Pour granular particles into chute container, then induce flow

atom_style	sphere
boundary	p p fm
newton		off
comm_modify	vel yes

region		reg block -10 10 -10 10 -0.5 16 units box
create_box	1 reg
Created orthogonal box = (-10 -10 -0.5) to (10 10 16)
  1 by 1 by 1 MPI processor grid

neighbor	0.2 bin
neigh_modify	delay 0

# IMPORTANT NOTE: these values of stiffness (2000) and timestep (0.001)
# are used in this example file to produce a quick simulation and movie.
# More appropriate values for realistic simulations would be
# k = 2.0e5 and dt = 0.0001, as in bench/in.chute.

pair_style      gran/hooke/history 2000.0 NULL 50.0 NULL 0.5 0
pair_coeff	* *

timestep	0.001

fix		1 all nve/sphere
fix		2 all gravity 1.0 spherical 0.0 -180.0
fix		zlower all wall/gran hooke/history 2000.0 NULL 50.0 NULL 0.5 0 		zplane 0.0 2000.0

region		slab block -9.0 9.0 -9.0 9.0 10.0 15.0 units box
fix		ins all pour 3000 1 300719 vol 0.13 50 region slab
Particle insertion: 402 every 3162 steps, 3000 by step 22135

compute		1 all erotate/sphere
thermo_style	custom step atoms ke c_1 vol
thermo		1000
thermo_modify	lost ignore norm no
compute_modify	thermo_temp dynamic/dof yes

#dump		id all atom 1000 dump.pour

#dump		2 all image 1000 image.*.jpg type type #		axes yes 0.8 0.02 view 80 -30
#dump_modify	2 pad 5

#dump		3 all movie 1000 movie.mpg type type #		axes yes 0.8 0.02 view 80 -30
#dump_modify	3 pad 5

run		25000
Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule
Neighbor list info ...
  update: every = 1 steps, delay = 0 steps, check = yes
  max neighbors/atom: 2000, page size: 100000
  master list distance cutoff = 1.2
  ghost atom cutoff = 1.2
  binsize = 0.6, bins = 34 34 28
  1 neighbor lists, perpetual/occasional/extra = 1 0 0
  (1) pair gran/hooke/history, perpetual
      attributes: half, newton off, size, history
      pair build: half/size/bin/newtoff
      stencil: full/bin/3d
      bin: standard
Per MPI rank memory allocation (min/avg/max) = 5.956 | 5.956 | 5.956 Mbytes
   Step        Atoms        KinEng          c_1           Volume    
         0           0  -0              0              6600         
      1000         402   753.1301       0              6600         
      2000         402   1389.6785      0              6600         
      3000         402   1439.3007      16.360577      6600         
      4000         804   1694.9311      52.966189      6600         
      5000         804   1564.7533      67.202593      6600         
      6000         804   1303.6937      65.31424       6600         
      7000        1206   1590.3342      63.948699      6600         
      8000        1206   1489.2483      54.736993      6600         
      9000        1206   1234.442       56.141183      6600         
     10000        1608   1314.3588      49.189129      6600         
     11000        1608   1238.0609      42.558653      6600         
     12000        1608   1143.6455      41.554747      6600         
     13000        2010   1229.989       49.661038      6600         
     14000        2010   1176.3015      40.982761      6600         
     15000        2010   1011.4718      45.872673      6600         
     16000        2412   1128.8326      47.405058      6600         
     17000        2412   1035.4314      40.22595       6600         
     18000        2412   873.87039      40.07875       6600         
     19000        2814   967.91799      41.49685       6600         
     20000        2814   928.0341       39.924344      6600         
     21000        2814   820.35467      37.621246      6600         
     22000        2814   549.00702      41.541324      6600         
     23000        3000   441.94025      41.467527      6600         
     24000        3000   339.91044      25.849093      6600         
     25000        3000   243.91083      20.921917      6600         
Loop time of 8.07068 on 1 procs for 25000 steps with 3000 atoms

Performance: 267635.587 tau/day, 3097.634 timesteps/s, 9.293 Matom-step/s
99.8% CPU use with 1 MPI tasks x 1 OpenMP threads

MPI task timing breakdown:
Section |  min time  |  avg time  |  max time  |%varavg| %total
---------------------------------------------------------------
Pair    | 4.6682     | 4.6682     | 4.6682     |   0.0 | 57.84
Neigh   | 1.0497     | 1.0497     | 1.0497     |   0.0 | 13.01
Comm    | 0.16028    | 0.16028    | 0.16028    |   0.0 |  1.99
Output  | 0.00076244 | 0.00076244 | 0.00076244 |   0.0 |  0.01
Modify  | 2.0196     | 2.0196     | 2.0196     |   0.0 | 25.02
Other   |            | 0.172      |            |       |  2.13

Nlocal:           3000 ave        3000 max        3000 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost:            667 ave         667 max         667 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs:          13503 ave       13503 max       13503 min
Histogram: 1 0 0 0 0 0 0 0 0 0

Total # of neighbors = 13503
Ave neighs/atom = 4.501
Neighbor list builds = 1150
Dangerous builds = 0

unfix		ins
fix		2 all gravity 1.0 chute 26.0
run		25000
Generated 0 of 0 mixed pair_coeff terms from geometric mixing rule
Per MPI rank memory allocation (min/avg/max) = 10.64 | 10.64 | 10.64 Mbytes
   Step        Atoms        KinEng          c_1           Volume    
     25000        3000   243.91083      20.921917      6600         
     26000        3000   111.73212      19.181089      6600         
     27000        3000   175.53659      12.143401      6600         
     28000        3000   315.95861      12.721047      6600         
     29000        3000   516.24386      15.103525      6600         
     30000        3000   779.3423       19.057186      6600         
     31000        3000   1118.6219      21.320808      6600         
     32000        3000   1512.8878      25.012099      6600         
     33000        3000   1969.247       30.402739      6600         
     34000        3000   2499.318       37.297539      6600         
     35000        3000   3074.9401      45.925996      6600         
     36000        3000   3768.2108      39.734162      6600         
     37000        3000   4400.6971      44.337674      6600         
     38000        3000   5178.4457      63.168989      6600         
     39000        3000   6028.928       56.570416      6600         
     40000        3000   6947.424       67.360376      6600         
     41000        3000   7896.0016      69.368604      6600         
     42000        3000   8977.9347      66.242546      6600         
     43000        3000   10026.618      55.776273      6600         
     44000        3000   11106.873      69.943396      6600         
     45000        3000   12264.363      79.440158      6600         
     46000        3000   13562.635      67.026549      6600         
     47000        3000   14796.806      70.121289      6600         
     48000        3000   16254.182      70.690438      6600         
     49000        3000   17711.386      63.668043      6600         
     50000        3000   19144.269      66.708659      6600         
Loop time of 17.582 on 1 procs for 25000 steps with 3000 atoms

Performance: 122853.050 tau/day, 1421.910 timesteps/s, 4.266 Matom-step/s
99.7% CPU use with 1 MPI tasks x 1 OpenMP threads

MPI task timing breakdown:
Section |  min time  |  avg time  |  max time  |%varavg| %total
---------------------------------------------------------------
Pair    | 11.641     | 11.641     | 11.641     |   0.0 | 66.21
Neigh   | 1.7715     | 1.7715     | 1.7715     |   0.0 | 10.08
Comm    | 0.38219    | 0.38219    | 0.38219    |   0.0 |  2.17
Output  | 0.0010728  | 0.0010728  | 0.0010728  |   0.0 |  0.01
Modify  | 3.4549     | 3.4549     | 3.4549     |   0.0 | 19.65
Other   |            | 0.3309     |            |       |  1.88

Nlocal:           3000 ave        3000 max        3000 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Nghost:            748 ave         748 max         748 min
Histogram: 1 0 0 0 0 0 0 0 0 0
Neighs:          14117 ave       14117 max       14117 min
Histogram: 1 0 0 0 0 0 0 0 0 0

Total # of neighbors = 14117
Ave neighs/atom = 4.7056667
Neighbor list builds = 848
Dangerous builds = 0
Total wall time: 0:00:25
